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Differential photoproduction cross sections are measured for events containing D* mesons. The data were taken with the H1 detector at the ep collider HERA and correspond to an integrated luminosity of 51.1 pb-1. The kinematic region covers…

High Energy Physics - Experiment · Physics 2012-08-27 H1 Collaboration

We calculate the cross section for the production of two jets with large transverse momenta $\kf^2$ in DIS diffractive dissociation for both transverse and longitudinally polarized photons. The scale which defines the hardness of the…

High Energy Physics - Phenomenology · Physics 2014-11-17 J. Bartels , H. Lotter , M. Wuesthoff

Measurements are presented of differential dijet cross sections in diffractive photoproduction (Q^2<0.01 GeV^2) and deep-inelastic scattering processes (DIS, 4<Q^2<80 GeV^2). The event topology is given by ep-> e X Y, in which the system X,…

High Energy Physics - Experiment · Physics 2012-08-27 H1 Collaboration

The triple-differential dijet cross-section, d^3 sigma_{ep}/dQ2 dE_t2 dxgjets, is measured with the H1 detector at HERA as a function of the photon virtuality Q^2, the fraction of the photon's momentum carried by the parton entering the…

High Energy Physics - Experiment · Physics 2008-11-26 C. Adloff

We study the inclusive production of two hadrons in deep inelastic processes, l N ---> l h_1 h_2 X, with h_1 in the current fragmentation region (CFR) and h_2 in the target fragmentation region (TFR). Assuming a factorized scheme, the…

High Energy Physics - Phenomenology · Physics 2015-05-30 Mauro Anselmino , Vincenzo Barone , Aram Kotzinian

We study the dihadron fragmentation functions (DiFF) of longitudinally polarized quarks into pion pairs. The quark-jet framework is used to model the sequential hadronization of a polarized quark into hadrons, where the polarization…

High Energy Physics - Phenomenology · Physics 2017-10-20 Hrayr H. Matevosyan , Aram Kotzinian , Anthony W. Thomas

The distributions of transverse momentum and longitudinal momentum fraction of charged particles in jets are measured in Pb+Pb and pp collisions with the ATLAS detector at the LHC. The distributions are measured as a function of jet…

High Energy Physics - Experiment · Physics 2017-09-20 ATLAS Collaboration

We investigate structure functions in deep inelastic scattering processes (DIS) at Bj\"{o}rken limit and found that they are factorized into the longitudinal and transversal parts. We see that the longitudinal part can be linked to exact…

High Energy Physics - Phenomenology · Physics 2025-03-18 H. Babujian , M. Karowski , A. Sedrakyan

A measurement of the double-differential inclusive jet cross section as a function of jet transverse momentum pT and absolute jet rapidity |y| is presented. The analysis is based on proton-proton collisions collected by the CMS experiment…

High Energy Physics - Experiment · Physics 2016-08-16 CMS Collaboration

The cross section of diffractive deep-inelastic scattering ep \rightarrow eXp is measured, where the system X contains at least two jets and the leading final state proton is detected in the H1 Forward Proton Spectrometer. The measurement…

High Energy Physics - Experiment · Physics 2015-06-03 H1 Collaboration

We predict cross sections in deep inelastic scattering (DIS) for the production of two jets---one along the proton beam direction created by initial state radiation (ISR) and another created by final state radiation after the hard…

High Energy Physics - Phenomenology · Physics 2013-09-12 Daekyoung Kang , Christopher Lee , Iain W. Stewart

The inclusive photoproduction of D\ast mesons and of D\ast-tagged dijets is investigated with the H1 detector at the ep collider HERA. The kinematic region covers small photon virtualities Q2 < 2 GeV2 and photon-proton centre-of-mass…

High Energy Physics - Experiment · Physics 2015-06-04 H1 Collaboration

Jet reconstruction and jet fragmentation variables provide important information to study the interaction between hard scattered partons and the Quark-Gluon Plasma. This paper presents the measurement of the inclusive cross section for…

Nuclear Experiment · Physics 2019-08-13 Rongrong Ma

We argue that the production of forward jets in polarised deep inelastic scattering can be a useful tool for probing the double $ln^2(1/x)$ resummation effects which control the polarised deep inelastic scattering for small values of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 J. Kwiecinski , B. Ziaja

Recent LHCb measurements of the $J/\psi$ meson production in jets is analyzed using fragmentation jet function formalism. It is shown that disagreement with theoretical predictions for distribution over the fraction of $J/\psi$ transverse…

High Energy Physics - Phenomenology · Physics 2017-10-12 I. Belyaev , A. V. Berezhnoy , A. K. Likhoded , A. V. Luchinsky

The cross section for photon production in association with at least one jet containing a $b$-quark hadron has been measured in proton antiproton collisions at $\sqrt{s}=1.96$ TeV. The analysis uses a data sample corresponding to an…

High Energy Physics - Experiment · Physics 2012-08-27 CDF collaboration

Measurements of charged-particle fragmentation functions of jets produced in ultra-relativistic nuclear collisions can provide insight into the modification of parton showers in the hot, dense medium created in the collisions. ATLAS has…

High Energy Physics - Experiment · Physics 2014-11-24 ATLAS Collaboration

The target fragmentation region of semi-inclusive deep inelastic scattering is described at leading twist, taking beam and target polarizations into account. The formalism of polarized and transverse-momentum dependent fracture functions is…

High Energy Physics - Phenomenology · Physics 2011-04-20 Mauro Anselmino , Vincenzo Barone , Aram Kotzinian

A measurement of the dijet production cross section is reported based on proton-proton collision data collected in 2016 at $\sqrt{s}$ = 13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of up to 36.3…

High Energy Physics - Experiment · Physics 2025-02-03 CMS Collaboration

Invariant inclusive single particle/jet cross sections in p-p collisions can be factorized in terms of two separable pT dependences, a [pT - sqrt(s)] sector and an [xR - pT - sqrt(s)] sector, where xR = E/Emax is the radial scaling…

High Energy Physics - Phenomenology · Physics 2021-05-07 Frank E. Taylor
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